CN109769282A

CN109769282A - A kind of method of cell reselection, terminal and the network equipment

Info

Publication number: CN109769282A
Application number: CN201711097614.6A
Authority: CN
Inventors: 谢芳; 张晓然; 刘光毅
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Co Ltd
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Co Ltd
Priority date: 2017-11-09
Filing date: 2017-11-09
Publication date: 2019-05-17
Also published as: WO2019091203A1

Abstract

The embodiment of the present invention provides the method, terminal and the network equipment of a kind of cell reselection.The method of cell reselection includes: to obtain the reselecting parameters for supporting the terminal of unactivated state from source cell gravity treatment to Target cell when, and the source cell is the cell in the first wireless access network notification area RNA, and the Target cell is the cell in the 2nd RNA；The reselecting parameters include at least: the parameter of goal-selling reselection time section and/or the Target cell；Reselection conditions according to the reselecting parameters and terminal gravity treatment to the Target cell, gravity treatment to the Target cell.Aspects of which provide the cell re-selection mechanism for supporting unactivated state (inactive), terminal is at the re-selecting cell across RNA, the relevant reselection conditions of RNA and reselection time are configured for it, so that UE is stayed in as far as possible in current RNA, frequent switching RNA is avoided, and avoids the expense due to caused by switching RNA.

Description

A kind of method of cell reselection, terminal and the network equipment

Technical field

The present invention relates to the communications fields, particularly relate to the method, terminal and the network equipment of a kind of cell reselection.

Background technique

5G defines a kind of new UE (user terminal) state, i.e. inactive (inactive state).UE in a state in which When lower, the connection of wireless RRC (wireless heterogeneous networks) is released, but the connection of core net thinks the UE there is also, core net Also in connected state.

For the UE of inactive state, when RNA (RAN Notification Area, the wireless access network notification area locating for it Domain) generate variation when, new gNB (node B or target BS) need to source gNB obtain UE contextual information.

Therefore, it causes UE frequently to replace RNA and brings biggish signaling overheads.

Summary of the invention

The present invention provides a kind of method of cell reselection, terminal and the network equipments.For supporting unactivated state (inactive) cell re-selection mechanism, terminal is at the re-selecting cell across RNA, for the relevant reselection conditions of its configuration RNA and again The time is selected, so that UE is stayed in as far as possible in current RNA, avoids frequent switching RNA, and avoids the expense due to caused by switching RNA.

In order to solve the above technical problems, the embodiment of the present invention provides following scheme:

A kind of method of cell reselection, comprising:

Obtain the reselecting parameters for supporting the terminal of unactivated state from source cell gravity treatment to Target cell when, the source cell For the cell in the first wireless access network notification area RNA, the Target cell is the cell in the 2nd RNA；The gravity treatment ginseng Number includes at least: the parameter of goal-selling reselection time section and/or the Target cell；

According to the reselection conditions of the reselecting parameters and terminal gravity treatment to the Target cell, gravity treatment is small to the target Area.

Wherein, the reselecting parameters further include the parameter of the source cell, and the goal-selling reselection time section is greater than base Plinth reselection time section.

Wherein, according to the reselecting parameters and terminal gravity treatment to the reselection conditions of the Target cell, gravity treatment is described in The step of Target cell includes:

Reselection conditions according to goal-selling reselection time section and terminal gravity treatment to the Target cell, gravity treatment to the mesh Mark cell；Or

It is small to the target according to the first parameter of the source cell, the second parameter of the Target cell and terminal gravity treatment The reselection conditions in area, gravity treatment to the Target cell；Or

According to the goal-selling reselection time section, the first parameter of the source cell, the second ginseng of the Target cell Several and reselection conditions of the terminal gravity treatment to the Target cell, gravity treatment to the Target cell.

Wherein, the goal-selling reselection time section is Treselection_RAT+Treselection_RNA；

Wherein, Treselection_RATFor basic reselection time section, Treselection_RNAFor the cell for the 2nd RNA Default reselection time offset.

Wherein, according to the reselection conditions of first parameter, second parameter and terminal gravity treatment to the Target cell, Gravity treatment includes: to the step of Target cell

In the alien frequencies or different system cell that the Target cell is high priority, and the source cell has the source small First preset threshold of first parameter in area, if the second parameter of the Target cell is more than the second goal-selling threshold value, Then to the Target cell, first parameter is Reference Signal Received Quality RSRQ for gravity treatment.

Wherein, if the second parameter of the Target cell is more than the second preset threshold, gravity treatment is small to the target The step of area includes:

If Squal > Thresh of Target cell_X,HighQ+Thresh_RNA,HighQOr the Srxlev of Target cell > Thresh_X,HighP+Thresh_RNA,HighP, then gravity treatment to the Target cell；

Wherein, the Squal is cell selection signal mass value, and Srxlev is cell selection reception signal level intensity Value；

Thresh_X,HighQ+Thresh_RNA,HighQFor the second goal-selling threshold value of Squal, Thresh_X,HighQFor Squal's Basic threshold, Thresh_RNA,HighQFor the threshold shift of the Squal of the 2nd RNA；

Thresh_X,HighP+Thresh_RNA,HighPFor the second goal-selling threshold value of Srxlev, Thresh_X,HighPFor Srxlev Basic threshold, Thresh_RNA,HighPFor the threshold shift of the Srxlev of the 2nd RNA.

Wherein, according to the reselection conditions of first parameter, second parameter and terminal gravity treatment to the Target cell, Gravity treatment includes: to the Target cell step

In the alien frequencies or different system cell that the Target cell is high priority, and the source cell does not provide and is based on When the threshold value of the first parameter reference signal receiving quality RSRQ, if the second parameter of the Target cell is more than the second default mesh Mark threshold value, then gravity treatment to the Target cell.

Wherein, if the second parameter of the Target cell is more than the second goal-selling threshold value, gravity treatment to the target The step of cell includes:

If Srxlev > Thresh of Target cell_X,HighP+Thresh_RNA,HighP, then gravity treatment to the Target cell；

Wherein, Thresh_X,HighP+Thresh_RNA,HighPFor the second goal-selling threshold value of Srxlev, Thresh_X,HighPFor The basic threshold of Srxlev, Thresh_RNA,HighPFor the threshold shift of the Srxlev of the 2nd RNA.

When the Target cell and the source cell are the alien-frequency district with frequency or equal priority, according to described first Parameter and second parameter grade to the source cell and the Target cell, obtain best Target cell of grading, Lay equal stress on and choose the best Target cell of grading, first parameter is the Rs of the source cell, and second parameter is institute State the Rn of Target cell.

Wherein, source cell Rs=Q_meas,s+Q_Hyst-Q_offsettemp；

Target cell Rn=Q_meas,n-Q_offset-Q_offsettemp-Q_offsetRNA；

Wherein, Q_meas,sFor the Reference Signal Received Power RSRP measured value of source cell, Q_HystIt is slow for the measurement of source cell It is stagnant, Q_offsettempIt is biased for the measurement of source cell；

Q_meas,nIt is the Reference Signal Received Power RSRP measured value of Target cell, Q_offsetFor the first measurement of Target cell Biasing, Q_offsettempFor the second measurement biasing of Target cell, Q_offsetRNAIt is inclined for the measurement that belongs to the Target cell of different RNA Shifting amount.

In the alien frequencies or different system cell that the Target cell is low priority, and the first parameter of the source cell is low When the first preset threshold, if the cell selection signal quality Squal of the source cell is lower than an aimed quality threshold value, and institute The second parameter for stating Target cell is more than the second goal-selling threshold value, then gravity treatment to the Target cell.

Wherein, if the cell selection signal quality Squal of the source cell is lower than an aimed quality threshold value, and the mesh The second parameter for marking cell is more than the second goal-selling threshold value, then gravity treatment to the step of Target cell includes:

If Squal < Thresh of source cell_Serving,LowQ-Thresh_{RNA Serving,LowQ}Or Squal < Thresh_Serving,LowQ, and Squal > Thresh of Target cell_X,LowQ+Thresh_RNA,LowQ；Or

Squal < Thresh of source cell_Serving,LowQ-Thresh_{RNA Serving,LowQ}Or Squal < Thresh_Serving,LowQ, and Srxlev > Thresh of Target cell_X,LowP+Thresh_RNA,LowP, then gravity treatment is small to the target Area；

Wherein, Thresh_Serving,LowQFor the basic Low threshold of the Squal of source cell, Thresh_{RNA Serving,LowQ}For needle To the threshold shift for the source cell Squal that the Target cell for belonging to different RNA from source cell is arranged；

Thresh_X,LowQFor the basic threshold of the Squal of Target cell, Thresh_RNA,LowQFor the target for belonging to different RNA The threshold shift of the Squal of cell；

Thresh_X,LowPFor the basic threshold of the Srxlev of Target cell, Thresh_RNA,LowPFor the target for belonging to different RNA The threshold shift of the Srxlev of cell.

Be alien frequencies for low priority or different system cell in the Target cell, and the source cell without needle When to the threshold value of Reference Signal Received Quality RSRQ, if the selection received signal level intensity value Srxlev of the source cell is low In the selection received signal level intensity value Srxlev of the first preset threshold, and the Target cell be more than the second goal-selling threshold Value, then gravity treatment to the Target cell.

Wherein, if the selection received signal level intensity value Srxlev of the source cell is lower than the first preset threshold, and The selection received signal level intensity value Srxlev of the Target cell is more than the second goal-selling threshold value, gravity treatment to the target The step of cell includes:

If Srxlev < Thresh of the source cell_Serving,LowP-Thresh_{RNA Serving,LowP}Or Srxlev < Thresh_Serving,LowP, and Srxlev > Thresh of the Target cell_X,LowP+Thresh_RNA,LowP, then gravity treatment to the target Cell；

Wherein, Thresh_Serving,LowPFor the basic threshold of the Srxlev of source cell, Thresh_{RNA Serving,LowP}It is small for source The default bias amount of the Srxlev in area；

Thresh_X,LowPFor the basic threshold of the Srxlev of Target cell, Thresh_RNA,LowPFor the Srxlev of Target cell Default bias amount.

Wherein, terminal is related to from being obtained in the default reselection time section and/or reselection conditions in the system message of source cell And threshold value；Or

Terminal obtains the default reselection time section and/or gravity treatment item from radio resource control RRC connection release message Threshold value involved in part；Or

Terminal obtains threshold involved in the default reselection time section and/or reselection conditions from system reconfiguration message Value.

Wherein, gravity treatment includes: to the step of Target cell

Gravity treatment to the Target cell include the cell of multiple and different priority when, gravity treatment to the small of highest priority Area；Or

When gravity treatment is to the cell that the Target cell includes multiple equal priorities, gravity treatment is to according to predetermined order condition After being ranked up to the cell of multiple equal priorities, sort best cell.

The embodiment of the present invention also provides a kind of terminal, comprising:

Transceiver, for obtaining the gravity treatment ginseng for supporting the terminal of unactivated state from source cell gravity treatment to Target cell when Number, the source cell are the cell in the first wireless access network notification area RNA, and the Target cell is small in the 2nd RNA Area；The reselecting parameters include at least: the parameter of goal-selling reselection time section and/or the Target cell；

Processor, for the reselection conditions according to the reselecting parameters and terminal gravity treatment to the Target cell, gravity treatment To the Target cell.

Wherein, the reselecting parameters further include the parameter of the source cell, and the goal-selling reselection time section is greater than just Normal reselection time section.

Wherein, the processor is in the gravity treatment item according to the reselecting parameters and terminal gravity treatment to the Target cell Part is specifically used for when gravity treatment is to the Target cell:

In the alien frequencies or different system cell that the Target cell is high priority, while the source cell has the source First preset threshold of the first parameter of cell, if the second parameter of the Target cell is more than the second goal-selling threshold value When, then gravity treatment to the Target cell, first parameter is Reference Signal Received Quality RSRQ.

Wherein, if the second parameter of the Target cell is more than the second preset threshold, gravity treatment is small to the target Area includes:

Wherein, if the second parameter of the Target cell is more than the second goal-selling threshold value, gravity treatment to the target Cell includes:

Wherein, source cell Rs=Q_meas,s+Q_Hyst-Q_offsettemp；

Target cell Rn=Q_meas,n-Q_offset-Q_offsettemp-Q_offsetRNA；

Wherein, if the cell selection signal quality Squal of the source cell is lower than an aimed quality threshold value, and the mesh The second parameter for marking cell is more than the second goal-selling threshold value, then gravity treatment includes: to the Target cell

Wherein, Thresh_Serving,LowQFor the basic Low threshold of the Squal of source cell, Thresh_{RNA Serving,LowQ}For needle To the threshold shift of the Squal of the source cell for the Target cell setting for belonging to different RNA from source cell；

Wherein, if the selection received signal level intensity value Srxlev of the source cell is lower than the first preset threshold, and The selection received signal level intensity value Srxlev of the Target cell is more than the second goal-selling threshold value, gravity treatment to the target Cell includes:

Wherein, Thresh_Serving,LowPFor the basic threshold of the Srxlev of source cell, Thresh_{RNA Serving,LowP}It is small for source The threshold shift of the Srxlev in area；

Thresh_X,LowPFor the basic threshold of the Srxlev of Target cell, Thresh_RNA,LowPFor the Srxlev of Target cell Threshold shift.

Wherein, the transceiver be specifically used for obtained from the system message of source cell the default reselection time section and/ Or threshold value involved in reselection conditions；Or

From being obtained in radio resource control RRC connection release message in the default reselection time section and/or reselection conditions The threshold value being related to；Or

Threshold value involved in the default reselection time section and/or reselection conditions is obtained from system reconfiguration message.

Wherein, the processor is specifically used for when gravity treatment is to the Target cell:

The embodiment of the present invention also provides a kind of method of cell reselection, comprising:

Threshold value involved in reselection time section and/or reselection conditions, institute are preset to supporting the terminal of unactivated state to send State default reselection time section be terminal from the source cell gravity treatment in the first wireless access network notification area RNA into the 2nd RNA Reselecting parameters when Target cell.

Wherein, sending the step of presetting threshold value involved in reselection time section and/or reselection conditions to terminal includes:

By sending threshold value involved in default reselection time section and/or reselection conditions to terminal in system message；Or

Default reselection time section and/or reselection conditions are sent to terminal by radio resource control RRC connection release message Involved in threshold value；Or

Threshold value involved in default reselection time section and/or reselection conditions is sent to terminal by system reconfiguration message.

The embodiment of the present invention also provides a kind of network equipment, comprising:

Transceiver, for being related into the default reselection time section of terminal transmission and/or reselection conditions for supporting unactivated state And threshold value, the default reselection time section be terminal from source cell gravity treatment to Target cell when reselecting parameters.

Wherein, the transceiver is specifically used for by sending default reselection time section and/or again to terminal in system message Select threshold value involved in condition；Or default reselection time is sent to terminal by radio resource control RRC connection release message Threshold value involved in section and/or reselection conditions；Or by system reconfiguration message to terminal send default reselection time section and/ Or threshold value involved in reselection conditions.

The embodiment of the present invention also provides a kind of communication equipment, comprising: processor, the storage for being stored with computer program Device when the computer program is run by processor, executes method as described above.

The embodiment of the present invention also provides a kind of computer readable storage medium, including instruction, when described instruction is calculating When machine is run, so that computer executes method as described above.

Above scheme of the invention is include at least the following beneficial effects:

Above scheme of the invention obtains the weight for supporting the terminal of unactivated state from source cell gravity treatment to Target cell when Parameter is selected, the source cell is the cell in the first wireless access network notification area RNA, and the Target cell is in the 2nd RNA Cell；The reselecting parameters include at least: the parameter of goal-selling reselection time section and/or the Target cell, described pre- If target reselection time section is greater than normal reselection time section；It is small to the target according to the reselecting parameters and terminal gravity treatment The reselection conditions in area, gravity treatment to the Target cell.So that terminal is not simple when the re-selecting cell across RNA occurs Judge whether the parameter of Target cell is greater than dependent threshold and gravity treatment occurs, but according at least to greater than normal reselection time section The reselecting parameters of goal-selling reselection time or Target cell when meeting certain condition, then carry out the gravity treatment across RNA, reduce Due to caused by reselecting parameters in the prior art and reselection conditions the problem of frequent switching RNA, to reduce due to frequency Signaling overheads caused by numerous switching RNA.

Detailed description of the invention

Fig. 1 is the flow chart of the method for cell reselection of the invention；

Fig. 2 is the module architectures schematic diagram of terminal of the invention.

Specific embodiment

Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure It is fully disclosed to those skilled in the art.

As shown in Figure 1, the embodiment of the present invention provides a kind of method of cell reselection, comprising:

Step 11, the reselecting parameters for supporting the terminal of unactivated state from source cell gravity treatment to Target cell when, institute are obtained Stating source cell is the cell in the first wireless access network notification area RNA, and the Target cell is the cell in the 2nd RNA；Institute It states reselecting parameters to include at least: the parameter of goal-selling reselection time section and/or the Target cell；

Step 12, the reselection conditions according to the reselecting parameters and terminal gravity treatment to the Target cell, gravity treatment to institute State Target cell.

The embodiment of the invention obtains the weight for supporting the terminal of unactivated state from source cell gravity treatment to Target cell when Parameter is selected, the source cell is the cell in the first wireless access network notification area RNA, and the Target cell is in the 2nd RNA Cell；The reselecting parameters include at least: the second parameter of goal-selling reselection time section and/or the Target cell, institute Goal-selling reselection time section is stated greater than normal reselection time section；According to the reselecting parameters and terminal gravity treatment to the mesh Mark the reselection conditions of cell, gravity treatment to the Target cell.So that terminal when the re-selecting cell across RNA occurs, is not letter Whether single parameter for judging Target cell, which is greater than dependent threshold, occurs gravity treatment, but according at least to greater than normal reselection time The goal-selling reselection time of section or the reselecting parameters of Target cell, when meeting certain condition, then carry out the gravity treatment across RNA, The problem of reducing the frequent switching RNA due to caused by reselecting parameters in the prior art and reselection conditions, thus reduce by The signaling overheads caused by frequent switching RNA.

In the embodiment of the invention, the reselecting parameters further include the parameter of the source cell.

Correspondingly, above-mentioned steps 12 can specifically include:

Step 121, the reselection conditions according to goal-selling reselection time section and terminal gravity treatment to the Target cell, gravity treatment To the Target cell；Or

Step 122, according to the first parameter of the source cell, the second parameter of the Target cell and terminal gravity treatment to institute State the reselection conditions of Target cell, gravity treatment to the Target cell；Or

Step 123, according to the goal-selling reselection time section, the first parameter of the source cell, the Target cell Reselection conditions to the Target cell of the second parameter and terminal gravity treatment, gravity treatment to the Target cell.

Wherein, in the step 121 and step 123, the goal-selling reselection time section is Treselection_RAT+ Treselection_RNA；

Wherein, Treselection_RATFor basic reselection time section, Treselection_RNAFor the cell for the 2nd RNA Default reselection time offset.The goal-selling reselection time section is applicable in following implementation.

In a specific embodiment of the invention, the specific implementation of the step 121 may include:

1211) in the alien frequencies or different system cell that the Target cell is high priority, and the source cell has institute The first preset threshold of the first parameter of source cell is stated, if goal-selling reselection time section reaches, gravity treatment to the target Cell；

1212) in the alien frequencies or different system cell that the Target cell is high priority, and the source cell does not mention When for threshold value based on the first parameter reference signal receiving quality RSRQ, if goal-selling reselection time section reaches, gravity treatment To the Target cell；

1213) when the Target cell and the source cell are the alien-frequency district with frequency or equal priority, according to institute It states the first parameter and second parameter grades to the source cell and the Target cell, obtain best target of grading Cell, if goal-selling reselection time section reaches, gravity treatment to the Target cell, first parameter is the source cell Rs, second parameter be the Target cell Rn；

1214) alien frequencies in the Target cell for low priority or different system cell, and the first of the source cell When parameter is lower than the first preset threshold, if goal-selling reselection time section reaches, gravity treatment to the Target cell；

It 1215) is alien frequencies for low priority or different system cell in the Target cell, and the source cell When being directed to the threshold value of Reference Signal Received Quality RSRQ, if goal-selling reselection time section reaches, gravity treatment is described in Target cell.

Above-mentioned 1211) -1215), compared with normal reselection time section, by increasing the cell reselection time across RNA, according to Biggish goal-selling reselection time section carries out the cell reselection across RNA and subtracts to reduce the cell reselection frequency across RNA Signaling overheads caused by few cell reselection across RNA.

In a specific embodiment of the invention, the specific implementation of the step 122 may include:

1221) in the alien frequencies or different system cell that the Target cell is high priority, while the source cell has First preset threshold of the first parameter of the source cell, if the second parameter of the Target cell is more than the second goal-selling When threshold value, then gravity treatment to the Target cell, first parameter is Reference Signal Received Quality RSRQ.

Here, in the case where considering the RSRQ of source cell, the thresholding of the Squal by improving Target cell, or Improve the Srxlev thresholding of Target cell, i.e. Thresh_X,HighQ+Thresh_RNA,HighQGreater than Thresh_X,HighQ, or Thresh_X,HighP+Thresh_RNA,HighPGreater than Thresh_X,HighQ, the cell reselection across RNA is carried out according to higher door, thus Reduce the cell reselection frequency across RNA, reduces signaling overheads caused by the cell reselection across RNA.

1222), in the alien frequencies or different system cell that the Target cell is high priority, and the source cell does not mention When for threshold value based on the first parameter reference signal receiving quality RSRQ, if the second parameter of the Target cell is more than second Goal-selling threshold value, then gravity treatment to the Target cell.

Here, in the case where not considering the RSRQ of source cell, by improving the Srxlev thresholding of Target cell, i.e., Thresh_X,HighP+Thresh_RNA,HighPGreater than Thresh_X,HighQ, the cell reselection across RNA is carried out according to higher door, thus Reduce the cell reselection frequency across RNA, reduces signaling overheads caused by the cell reselection across RNA.

1223), when the Target cell and the source cell are the alien-frequency district with frequency or equal priority, according to institute It states the first parameter and second parameter grades to the source cell and the Target cell, obtain best target of grading Cell lays equal stress on and chooses the best Target cell of grading, and first parameter is the Rs of the source cell, second parameter For the Rn of the Target cell.

Wherein, source cell Rs=Q_meas,s+Q_Hyst-Q_offsettemp；

Target cell Rn=Q_meas,n-Q_offset-Q_offsettemp-Q_offsetRNA；

Q_meas,nIt is the measured value of Target cell, Q_offsetFor the first measurement biasing of Target cell, Q_offsettempFor target Second measurement biasing of cell, Q_offsetRNAFor belong to different RNA Target cell measurement offset.

Here, by reducing the Rn of Target cell so that Target cell when being graded, be cited as it is preferable small A possibility that area, reduces, to reduce frequency of the terminal across RNA gravity treatment, reduces signaling overheads caused by the cell reselection across RNA.

1224), the alien frequencies in the Target cell for low priority or different system cell, and the first of the source cell When parameter is lower than the first preset threshold, if the cell selection signal quality Squal of the source cell is lower than an aimed quality threshold Value, and the second parameter of the Target cell is more than the second goal-selling threshold value, then gravity treatment to the Target cell.

Thresh_X,LowQFor the basic threshold of the Squal of Target cell, Thresh_RNA,LowQIt is small to belong to different RNA targets The threshold shift of the Squal in area；

Thresh_X,LowPFor the basic threshold of the Srxlev of Target cell, Thresh_RNA,LowPIt is small to belong to different RNA targets The threshold shift of the Srxlev in area.

Here, it in the case that in the case where considering the Squal of source cell, the Squal of source cell is relatively low, is not able to satisfy When the demand of terminal, and the thresholding of the Squal by improving Target cell, or improve the Srxlev thresholding of Target cell, i.e., Thresh_X,LowQ+Thresh_RNA,LowQGreater than Thresh_X,LowQOr Thresh_X,LowP+Thresh_RNA,LowPIt is greater than Thresh_X,LowP, the cell reselection across RNA, which is carried out, according to higher door subtracts to reduce the cell reselection frequency across RNA Signaling overheads caused by few cell reselection across RNA.

It 1225) is, alien frequencies for low priority or different system cell in the Target cell, and the source cell When not being directed to the threshold value of Reference Signal Received Quality RSRQ, if the selection received signal level intensity value of the source cell Srxlev is lower than the first preset threshold, and the selection received signal level intensity value Srxlev of the Target cell is more than second pre- If targets threshold, then gravity treatment to the Target cell.

Here, in the case that in the case where considering the Srxlev of source cell, the Srxlev of source cell is relatively low, Bu Nengman When the demand of sufficient terminal, and the thresholding of the Srxlev by improving Target cell, the cell across RNA is carried out according to higher door Gravity treatment reduces signaling overheads caused by the cell reselection across RNA to reduce the cell reselection frequency across RNA.

In a specific embodiment of the invention, the specific implementation of the step 123 may include:

1231) in the alien frequencies or different system cell that the Target cell is high priority, while the source cell has First preset threshold of the first parameter of the source cell, when the goal-selling reselection time section reaches, if the mesh When second parameter of mark cell is more than the second goal-selling threshold value, then gravity treatment to the Target cell, first parameter is ginseng Examine signal receiving quality RSRQ.

Here, in the case where considering the RSRQ of source cell, when the goal-selling reselection time section reaches, pass through The thresholding of the Squal of Target cell is improved, or improves the Srxlev thresholding of Target cell, i.e. Thresh_X,HighQ+ Thresh_RNA,HighQGreater than Thresh_X,HighQOr Thresh_X,HighP+Thresh_RNA,HighPGreater than Thresh_X,HighQ, according to compared with High door carries out the cell reselection across RNA, to reduce the cell reselection frequency across RNA, reduces cell reselection across RNA Caused signaling overheads.

1232), in the alien frequencies or different system cell that the Target cell is high priority, and the source cell does not mention When for threshold value based on the first parameter reference signal receiving quality RSRQ, when the goal-selling reselection time section reaches, such as Second parameter of Target cell described in fruit is more than the second goal-selling threshold value, then gravity treatment to the Target cell.

Here, in the case where not considering the RSRQ of source cell, when the goal-selling reselection time section reaches, pass through Improve the Srxlev thresholding of Target cell, i.e. Thresh_X,HighP+Thresh_RNA,HighPGreater than Thresh_X,HighQ, according to higher Door carries out the cell reselection across RNA, to reduce the cell reselection frequency across RNA, reduces cell reselection across RNA and causes Signaling overheads.

1233), when the Target cell and the source cell are the alien-frequency district with frequency or equal priority, according to institute It states the first parameter and second parameter grades to the source cell and the Target cell, obtain best target of grading Cell lays equal stress on when the goal-selling reselection time section reaches and chooses the best Target cell of grading, first ginseng Number is the Rs of the source cell, and second parameter is the Rn of the Target cell.

Wherein, source cell Rs=Q_meas,s+Q_Hyst-Q_offsettemp；

Target cell Rn=Q_meas,n-Q_offset-Q_offsettemp-Q_offsetRNA；

Here, by reducing the Rn of Target cell so that Target cell when being graded, be cited as it is preferable small A possibility that area, reduces, and when the goal-selling reselection time section reaches, then carries out the cell reselection across RNA, thus Frequency of the terminal across RNA cell reselection is reduced, signaling overheads caused by the cell reselection across RNA is reduced.

1234), the alien frequencies in the Target cell for low priority or different system cell, and the first of the source cell When parameter is lower than the first preset threshold, if the cell selection signal quality Squal of the source cell is lower than an aimed quality threshold Value, and when the goal-selling reselection time section reaches, the second parameter of the Target cell is more than the second goal-selling threshold Value, then gravity treatment to the Target cell.

Wherein, if the cell selection signal quality Squal of the source cell is lower than an aimed quality threshold value, described pre- If target reselection time section reaches, and the second parameter of the Target cell is more than the second goal-selling threshold value, then gravity treatment is arrived The step of Target cell includes:

When the goal-selling reselection time section reaches, if Squal < Thresh of source cell_Serving,LowQ- Thresh_{RNA Serving,LowQ}Or Squal < Thresh_Serving,LowQ, and Squal > Thresh of Target cell_X,LowQ+ Thresh_RNA,LowQ；Or

When the goal-selling reselection time section reaches, Squal < Thresh of source cell_Serving,LowQ- Thresh_{RNA Serving,LowQ}Or Squal < Thresh_Serving,LowQ, and Srxlev > Thresh of Target cell_X,LowP+ Thresh_RNA,LowP, then gravity treatment to the Target cell；

Wherein, Thresh_Serving,LowQFor the source cell for the Target cell setting for belonging to different RNA from source cell The normal Low threshold of Squal, Thresh_{RNA Serving,LowQ}For the threshold shift of the Squal of source cell；

Here, in the case where considering the Squal of source cell, the Squal of source cell is relatively low, is not able to satisfy the need of terminal When asking, and the thresholding of the Squal by improving Target cell, or improve the Srxlev thresholding of Target cell, i.e., Thresh_X,LowQ+Thresh_RNA,LowQGreater than Thresh_X,LowQOr Thresh_X,LowP+Thresh_RNA,LowPIt is greater than Thresh_X,LowP, when the goal-selling reselection time section reaches, the cell reselection across RNA is carried out according to higher thresholding, To reduce the cell reselection frequency across RNA, signaling overheads caused by the cell reselection across RNA is reduced.

It 1235) is, alien frequencies for low priority or different system cell in the Target cell, and the source cell When not being directed to the threshold value of Reference Signal Received Quality RSRQ, when the goal-selling reselection time section reaches, if described The selection received signal level intensity value Srxlev of source cell is lower than the first preset threshold, and the selection of the Target cell receives Signal level intensity value Srxlev is more than the second goal-selling threshold value, then gravity treatment to the Target cell.

Here, in the case that in the case where considering the Srxlev of source cell, the Srxlev of source cell is relatively low, Bu Nengman When the demand of sufficient terminal, when the goal-selling reselection time section reaches, and the door of the Srxlev by improving Target cell Limit carries out the cell reselection across RNA according to higher door, to reduce the cell reselection frequency across RNA, reduces across RNA Cell reselection caused by signaling overheads.

In addition, in the above embodiment of the present invention, when terminal obtains the default gravity treatment from the system message of source cell Between threshold value involved in section and/or reselection conditions；Or terminal obtained from radio resource control RRC connection release message it is described Threshold value involved in default reselection time section and/or reselection conditions；Or terminal obtained from system reconfiguration message it is described pre- If threshold value involved in reselection time section and/or reselection conditions.

In the above embodiment of the present invention, gravity treatment to the step of Target cell includes:

Gravity treatment to the Target cell include the cell of multiple and different priority when, gravity treatment to the small of highest priority Area；Or when gravity treatment is to the cell that the Target cell includes multiple equal priorities, gravity treatment is to according to predetermined order condition After being ranked up to the cell of multiple equal priorities, sort best cell.

In the above embodiment of the present invention, source cell can be the serving cell that terminal is presently in RNA, Target cell It can be the adjacent cell in another RNA, certainly in some cases, which is also source cell.Of the invention is above-mentioned each Cell re-selection mechanism of the embodiment for the UE of unactivated state, by configuring the relevant gravity treatment thresholding of RNA and timer for it (goal-selling reselection time section), so that UE is stayed in as far as possible in current RNA, avoids expense caused by frequent switching RNA.

As shown in Fig. 2, the embodiment of the present invention also provides a kind of terminal, comprising:

Wherein, source cell Rs=Q_meas,s+Q_Hyst-Q_offsettemp；

Target cell Rn=Q_meas,n-Q_offset-Q_offsettemp-Q_offsetRNA；

It should be noted that the embodiment of the terminal is equipment corresponding with the above method, in above method embodiment All implementations can also reach identical technical effect suitable for the embodiment of the terminal.

Threshold value involved in reselection time section and/or reselection conditions, institute are preset to supporting the terminal of unactivated state to send State default reselection time section be terminal from the source cell gravity treatment in the first wireless access network notification area RNA into the 2nd RNA Reselecting parameters when Target cell, the goal-selling reselection time section are greater than normal reselection time section.

Wherein, the step of sending threshold value involved in default reselection time section and/or reselection conditions to terminal includes: to pass through Threshold value involved in default reselection time section and/or reselection conditions is sent to terminal in system message；Or pass through radio resource It controls RRC connection release message and sends threshold value involved in default reselection time section and/or reselection conditions to terminal；Or pass through System reconfiguration message sends threshold value involved in default reselection time section and/or reselection conditions to terminal.

Transceiver, for being related into the default reselection time section of terminal transmission and/or reselection conditions for supporting unactivated state And threshold value, the default reselection time section be terminal from source cell gravity treatment to Target cell when reselecting parameters, it is described default Target reselection time section is greater than normal reselection time section.

It should be noted that the embodiment of the network equipment is equipment corresponding with the above method, above method embodiment In all implementations suitable for the embodiment of the network equipment, can also reach identical technical effect.

The embodiment of the present invention also provides a kind of communication equipment, comprising: processor, the storage for being stored with computer program Device when the computer program is run by processor, executes method as described above.Wherein, processor, memory pass through bus Or interface connection.The communication equipment can be the network equipment, such as base station, be also possible to terminal.

The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims

1. a kind of method of cell reselection characterized by comprising

The reselecting parameters for supporting the terminal of unactivated state from source cell gravity treatment to Target cell when are obtained, the source cell is the Cell in one wireless access network notification area RNA, the Target cell are the cell in the 2nd RNA；The reselecting parameters are extremely It less include: the parameter of goal-selling reselection time section and/or the Target cell；

Reselection conditions according to the reselecting parameters and terminal gravity treatment to the Target cell, gravity treatment to the Target cell.

2. the method for cell reselection according to claim 1, which is characterized in that the reselecting parameters further include that the source is small The parameter in area, the goal-selling reselection time section are greater than basic reselection time section.

3. the method for cell reselection according to claim 2, which is characterized in that according to the reselecting parameters and terminal weight The reselection conditions of the Target cell are chosen, gravity treatment to the step of Target cell includes:

According to the reselection conditions of goal-selling reselection time section and terminal gravity treatment to the Target cell, gravity treatment is small to the target Area；Or

According to the first parameter of the source cell, the second parameter of the Target cell and terminal gravity treatment to the Target cell Reselection conditions, gravity treatment to the Target cell；Or

According to the goal-selling reselection time section, the first parameter of the source cell, the second parameter of the Target cell and Reselection conditions of the terminal gravity treatment to the Target cell, gravity treatment to the Target cell.

4. the method for cell reselection according to claim 3, which is characterized in that the goal-selling reselection time section is Treselection_RAT+Treselection_RNA；

Wherein, Treselection_RATFor basic reselection time section, Treselection_RNAFor the pre- of the cell for the 2nd RNA If reselection time offset.

5. the method for cell reselection according to claim 4, which is characterized in that according to first parameter, described second To the reselection conditions of the Target cell, gravity treatment to the step of Target cell includes: for parameter and terminal gravity treatment

In the alien frequencies or different system cell that the Target cell is high priority, and the source cell has the source cell First preset threshold of the first parameter weighs if the second parameter of the Target cell is more than the second goal-selling threshold value The Target cell is chosen, first parameter is Reference Signal Received Quality RSRQ.

6. the method for cell reselection according to claim 5, which is characterized in that if the second parameter of the Target cell When more than the second preset threshold, then gravity treatment to the step of Target cell includes:

Thresh_X,HighQ+Thresh_RNA,HighQFor the second goal-selling threshold value of Squal, Thresh_X,HighQFor the basis of Squal Threshold value, Thresh_RNA,HighQFor the threshold shift of the Squal of the 2nd RNA；

Thresh_X,HighP+Thresh_RNA,HighPFor the second goal-selling threshold value of Srxlev, Thresh_X,HighPFor the base of Srxlev Plinth threshold value, Thresh_RNA,HighPFor the threshold shift of the Srxlev of the 2nd RNA.

7. the method for cell reselection according to claim 4, which is characterized in that according to first parameter, described second To the reselection conditions of the Target cell, gravity treatment includes: to the Target cell step for parameter and terminal gravity treatment

In the alien frequencies or different system cell that the Target cell is high priority, and the source cell is not provided based on first When the threshold value of parameter reference signal receiving quality RSRQ, if the second parameter of the Target cell is more than the second goal-selling threshold Value, then gravity treatment to the Target cell.

8. the method for cell reselection according to claim 7, which is characterized in that if the second parameter of the Target cell More than the second goal-selling threshold value, then gravity treatment to the step of Target cell includes:

9. the method for cell reselection according to claim 4, which is characterized in that according to first parameter, described second To the reselection conditions of the Target cell, gravity treatment to the step of Target cell includes: for parameter and terminal gravity treatment

When the Target cell and the source cell are the alien-frequency district with frequency or equal priority, according to first parameter It grades with second parameter to the source cell and the Target cell, obtains best Target cell of grading, lay equal stress on The best Target cell of grading is chosen, first parameter is the Rs of the source cell, and second parameter is the mesh Mark the Rn of cell.

10. the method for cell reselection according to claim 9, which is characterized in that

Source cell Rs=Q_meas,s+Q_Hyst-Q_offsettemp；

Target cell Rn=Q_meas,n-Q_offset-Q_offsettemp-Q_offsetRNA；

Wherein, Q_meas,sFor the Reference Signal Received Power RSRP measured value of source cell, Q_HystIt is sluggish for the measurement of source cell, Q_offsettempIt is biased for the measurement of source cell；

Q_meas,nIt is the Reference Signal Received Power RSRP measured value of Target cell, Q_offsetIt is inclined for the first measurement of Target cell It sets, Q_offsettempFor the second measurement biasing of Target cell, Q_offsetRNAIt is deviated to belong to the measurement of the Target cell of different RNA Amount.

11. the method for cell reselection according to claim 4, which is characterized in that according to first parameter, described second To the reselection conditions of the Target cell, gravity treatment to the step of Target cell includes: for parameter and terminal gravity treatment

In the alien frequencies or different system cell that the Target cell is low priority, and the first parameter of the source cell is lower than the When one preset threshold, if the cell selection signal quality Squal of the source cell is lower than an aimed quality threshold value, and the mesh The second parameter for marking cell is more than the second goal-selling threshold value, then gravity treatment to the Target cell.

12. the method for cell reselection according to claim 11, which is characterized in that if the cell of the source cell selects Signal quality Squal is lower than an aimed quality threshold value, and the second parameter of the Target cell is more than the second goal-selling threshold value, Then gravity treatment includes: to the step of Target cell

Squal < Thresh of source cell_Serving,LowQ-Thresh_{RNA Serving,LowQ}Or Squal < Thresh_Serving,LowQ, and Srxlev > Thresh of Target cell_X,LowP+Thresh_RNA,LowP, then gravity treatment to the Target cell；

Wherein, Thresh_Serving,LowQFor the basic Low threshold of the Squal of source cell, Thresh_{RNA Serving,LowQ}To be directed to and source Cell belongs to the threshold shift of the source cell Squal of the Target cell setting of different RNA；

Thresh_X,LowQFor the basic threshold of the Squal of Target cell, Thresh_RNA,LowQFor the Target cell for belonging to different RNA Squal threshold shift；

Thresh_X,LowPFor the basic threshold of the Srxlev of Target cell, Thresh_RNA,LowPFor the Target cell for belonging to different RNA Srxlev threshold shift.

13. the method for cell reselection according to claim 4, which is characterized in that according to first parameter, described second To the reselection conditions of the Target cell, gravity treatment to the step of Target cell includes: for parameter and terminal gravity treatment

Be alien frequencies for low priority or different system cell in the Target cell, and the source cell without for ginseng When examining the threshold value of signal receiving quality RSRQ, if the selection received signal level intensity value Srxlev of the source cell is lower than the One preset threshold, and the selection received signal level intensity value Srxlev of the Target cell is more than the second goal-selling threshold value, Then gravity treatment is to the Target cell.

14. the method for cell reselection according to claim 13, which is characterized in that if the selection of the source cell receives Signal level intensity value Srxlev is lower than the first preset threshold, and the selection received signal level intensity value of the Target cell Srxlev is more than the second goal-selling threshold value, and gravity treatment to the step of Target cell includes:

Wherein, Thresh_Serving,LowPFor the basic threshold of the Srxlev of source cell, Thresh_{RNA Serving,LowP}For source cell The default bias amount of Srxlev；

Thresh_X,LowPFor the basic threshold of the Srxlev of Target cell, Thresh_RNA,LowPFor Target cell Srxlev it is pre- If offset.

15. the method for cell reselection according to claim 3, which is characterized in that terminal is from the system message of source cell Obtain threshold value involved in the default reselection time section and/or reselection conditions；Or

Terminal in radio resource control RRC connection release message from obtaining in the default reselection time section and/or reselection conditions The threshold value being related to；Or

Terminal obtains threshold value involved in the default reselection time section and/or reselection conditions from system reconfiguration message.

16. the method for cell reselection according to claim 1, which is characterized in that the step of gravity treatment is to the Target cell Include:

Gravity treatment to the Target cell include the cell of multiple and different priority when, the cell of gravity treatment to highest priority； Or

When gravity treatment is to the cell that the Target cell includes multiple equal priorities, gravity treatment to according to predetermined order condition to more After the cell of a equal priority is ranked up, sort best cell.

17. a kind of terminal characterized by comprising

Transceiver, for obtaining the reselecting parameters for supporting the terminal of unactivated state from source cell gravity treatment to Target cell when, institute Stating source cell is the cell in the first wireless access network notification area RNA, and the Target cell is the cell in the 2nd RNA；Institute It states reselecting parameters to include at least: the parameter of goal-selling reselection time section and/or the Target cell；

Processor, for the reselection conditions according to the reselecting parameters and terminal gravity treatment to the Target cell, gravity treatment to institute State Target cell.

18. terminal according to claim 17, which is characterized in that the reselecting parameters further include the ginseng of the source cell Number, the goal-selling reselection time section are greater than normal reselection time section.

19. terminal according to claim 18, which is characterized in that the processor is according to the reselecting parameters and end Gravity treatment is held to be specifically used for when gravity treatment is to the Target cell to the reselection conditions of the Target cell:

20. terminal according to claim 19, which is characterized in that the goal-selling reselection time section is Treselection_RAT+Treselection_RNA；

21. terminal according to claim 20, which is characterized in that the processor is according to the reselecting parameters and end Gravity treatment is held to be specifically used for when gravity treatment is to the Target cell to the reselection conditions of the Target cell:

In the alien frequencies or different system cell that the Target cell is high priority, while the source cell has the source cell The first parameter the first preset threshold, if the second parameter of the Target cell is more than the second goal-selling threshold value, To the Target cell, first parameter is Reference Signal Received Quality RSRQ for gravity treatment.

22. terminal according to claim 21, which is characterized in that if the second parameter of the Target cell is more than second When preset threshold, then gravity treatment includes: to the Target cell

23. terminal according to claim 20, which is characterized in that the processor according to the reselecting parameters, and The reselection conditions of terminal gravity treatment to the Target cell are specifically used for when gravity treatment is to the Target cell:

24. terminal according to claim 23, which is characterized in that if the second parameter of the Target cell is more than second Goal-selling threshold value, then gravity treatment include: to the Target cell

25. terminal according to claim 20, which is characterized in that the processor according to the reselecting parameters, and The reselection conditions of terminal gravity treatment to the Target cell are specifically used for when gravity treatment is to the Target cell:

26. terminal according to claim 25, which is characterized in that

Source cell Rs=Q_meas,s+Q_Hyst-Q_offsettemp；

Target cell Rn=Q_meas,n-Q_offset-Q_offsettemp-Q_offsetRNA；

27. terminal according to claim 20, which is characterized in that the processor according to the reselecting parameters, and The reselection conditions of terminal gravity treatment to the Target cell are specifically used for when gravity treatment is to the Target cell:

28. terminal according to claim 27, which is characterized in that if the cell selection signal quality of the source cell Squal is lower than an aimed quality threshold value, and the second parameter of the Target cell is more than the second goal-selling threshold value, then gravity treatment is arrived The Target cell includes:

Wherein, Thresh_Serving,LowQFor the basic Low threshold of the Squal of source cell, Thresh_{RNA Serving,LowQ}To be directed to and source Cell belongs to the threshold shift of the Squal of the source cell of the Target cell setting of different RNA；

29. terminal according to claim 20, which is characterized in that the processor according to the reselecting parameters, and The reselection conditions of terminal gravity treatment to the Target cell are specifically used for when gravity treatment is to the Target cell:

30. terminal according to claim 29, which is characterized in that if the selection received signal level of the source cell is strong Angle value Srxlev is lower than the first preset threshold, and the selection received signal level intensity value Srxlev of the Target cell is more than the Two goal-selling threshold values, gravity treatment include: to the Target cell

Wherein, Thresh_Serving,LowPFor the basic threshold of the Srxlev of source cell, Thresh_{RNA Serving,LowP}For source cell The threshold shift of Srxlev；

Thresh_X,LowPFor the basic threshold of the Srxlev of Target cell, Thresh_RNA,LowPFor the threshold of the Srxlev of Target cell It is worth offset.

31. terminal according to claim 19, which is characterized in that the transceiver is specifically used for disappearing from the system of source cell Threshold value involved in the default reselection time section and/or reselection conditions is obtained in breath；Or

It is obtained from radio resource control RRC connection release message involved in the default reselection time section and/or reselection conditions Threshold value；Or

32. terminal according to claim 17, which is characterized in that the processor when gravity treatment is to the Target cell, It is specifically used for:

33. a kind of method of cell reselection characterized by comprising

Threshold value involved in reselection time section and/or reselection conditions is preset to supporting that the terminal of unactivated state is sent, it is described pre- If reselection time section is terminal from the source cell gravity treatment in the first wireless access network notification area RNA to the target in the 2nd RNA Reselecting parameters when cell.

34. the method for cell reselection according to claim 33, which is characterized in that send default reselection time section to terminal And/or the step of threshold value involved in reselection conditions, includes:

It is sent in default reselection time section and/or reselection conditions and is related to terminal by radio resource control RRC connection release message And threshold value；Or

35. a kind of network equipment characterized by comprising

Transceiver, for being sent involved in default reselection time section and/or reselection conditions to the terminal of support unactivated state Threshold value, the default reselection time section be terminal from source cell gravity treatment to Target cell when reselecting parameters.

36. the method for cell reselection according to claim 35, which is characterized in that the transceiver is specifically used for passing through and being Threshold value involved in default reselection time section and/or reselection conditions is sent to terminal in message of uniting；Or pass through radio resource control RRC connection release message processed sends threshold value involved in default reselection time section and/or reselection conditions to terminal；Or passes through and be Reconfiguration message of uniting sends threshold value involved in default reselection time section and/or reselection conditions to terminal.

37. a kind of communication equipment characterized by comprising processor, the memory for being stored with computer program, the calculating When machine program is run by processor, the method as described in the described in any item methods of claim 1-16 or 33 or 34 is executed.

38. a kind of computer readable storage medium, which is characterized in that including instruction, when described instruction computer run when, make Obtain method of the computer execution as described in the described in any item methods of claim 1-16 or 33 or 34.